/* ================================================================
   MAHEN SAMARANAYAKE - PERSONAL WEBSITE
   Colors: Primary #6ec1e4 | Secondary #54595f | Text #7a7a7a
           Accent #61ce70 | Deep Blue #4054b2
   Fonts:  Roboto (300,400,500,600,700) | Roboto Slab (400,500,600,700)
   ================================================================ */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Colors - from WordPress Elementor theme */
    --clr-primary: #6ec1e4;
    --clr-primary-dark: #5aa8cc;
    --clr-primary-light: #e8f5fb;
    --clr-secondary: #54595f;
    --clr-text: #7a7a7a;
    --clr-accent: #61ce70;
    --clr-accent-dark: #4db85c;
    --clr-deep-blue: #4054b2;
    --clr-deep-blue-dark: #334399;
    --clr-green: #23a455;
    --clr-white: #ffffff;
    --clr-black: #000000;
    --clr-bg: #ffffff;
    --clr-bg-alt: #f8fafb;
    --clr-bg-dark: #1a1f2e;
    --clr-bg-darker: #141824;
    --clr-border: #e8ecef;

    /* Typography */
    --ff-body: 'Roboto', sans-serif;
    --ff-heading: 'Roboto Slab', serif;
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3rem;
    --fs-5xl: 3.5rem;
    --fw-light: 300;
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semi: 600;
    --fw-bold: 700;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;

    /* Effects */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 50%;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.16);
    --shadow-card: 0 4px 24px rgba(110, 193, 228, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
}

body {
    font-family: var(--ff-body);
    font-size: var(--fs-base);
    font-weight: var(--fw-regular);
    line-height: 1.7;
    color: var(--clr-text);
    background-color: var(--clr-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--ff-heading);
    color: var(--clr-secondary);
    line-height: 1.3;
    font-weight: var(--fw-bold);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

::selection {
    background-color: var(--clr-primary);
    color: var(--clr-white);
}

/* ===== UTILITIES ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-4xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section__subtitle {
    display: inline-block;
    font-family: var(--ff-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semi);
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: var(--space-sm);
}

.section__subtitle--light {
    color: var(--clr-primary-light);
}

.section__title {
    font-size: var(--fs-3xl);
    color: var(--clr-secondary);
    margin-bottom: var(--space-md);
}

.section__divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    border-radius: 2px;
    margin: 0 auto;
}

.section__divider--left {
    margin: 0;
    margin-bottom: var(--space-xl);
}

.section__divider--light {
    background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-accent));
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 14px 32px;
    font-family: var(--ff-body);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semi);
    letter-spacing: 0.5px;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    border-radius: 50px;
    z-index: -1;
    transition: var(--transition);
}

.btn:hover::before {
    width: 100%;
}

.btn--primary {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white);
    border-color: transparent;
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(110, 193, 228, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--clr-white);
    border-color: var(--clr-white);
}

.btn--outline:hover {
    background: var(--clr-white);
    color: var(--clr-secondary);
    transform: translateY(-2px);
}

.btn--white {
    background: var(--clr-white);
    color: var(--clr-deep-blue);
    border-color: var(--clr-white);
}

.btn--white:hover {
    background: transparent;
    color: var(--clr-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

/* ===== HEADER / NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: var(--transition);
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.header--scrolled .nav__logo-text {
    color: var(--clr-secondary);
}

.header--scrolled .nav__link {
    color: var(--clr-secondary);
}

.header--scrolled .nav__link:hover,
.header--scrolled .nav__link.active {
    color: var(--clr-primary);
}

.header--scrolled .nav__toggle i {
    color: var(--clr-secondary);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    z-index: 1001;
}

.nav__logo-text {
    font-family: var(--ff-heading);
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    color: var(--clr-white);
    transition: var(--transition);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav__link {
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: rgba(255, 255, 255, 0.85);
    padding: 8px 16px;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
}

.nav__link:hover,
.nav__link.active {
    color: var(--clr-white);
}

.nav__link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--clr-primary);
    border-radius: var(--radius-full);
}

.header--scrolled .nav__link.active::after {
    background: var(--clr-primary);
}

.nav__link--cta {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white) !important;
    padding: 10px 24px;
}

.nav__link--cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(110, 193, 228, 0.4);
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: var(--fs-xl);
    color: var(--clr-white);
    cursor: pointer;
    z-index: 1001;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--clr-bg-dark) 0%, var(--clr-deep-blue-dark) 50%, var(--clr-bg-darker) 100%);
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: url('images/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.08;
    z-index: 0;
}

.hero__particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 2;
    padding: var(--space-3xl) var(--space-lg);
}

.hero__greeting {
    display: inline-block;
    font-size: var(--fs-md);
    font-weight: var(--fw-medium);
    color: var(--clr-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.hero__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-5xl);
    font-weight: var(--fw-bold);
    color: var(--clr-white);
    line-height: 1.15;
    margin-bottom: var(--space-md);
}

.hero__subtitle {
    font-size: var(--fs-xl);
    font-weight: var(--fw-medium);
    color: var(--clr-primary);
    margin-bottom: var(--space-xs);
}

.hero__tagline {
    font-family: var(--ff-heading);
    font-size: var(--fs-md);
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    margin-bottom: var(--space-xl);
}

.hero__description {
    font-size: var(--fs-base);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    max-width: 540px;
}

.hero__actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.hero__social {
    display: flex;
    gap: var(--space-md);
}

.hero__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--fs-md);
    transition: var(--transition);
}

.hero__social a:hover {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(110, 193, 228, 0.4);
}

.hero__image-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__image-ring {
    position: absolute;
    width: 440px;
    height: 440px;
    border: 2px solid rgba(110, 193, 228, 0.15);
    border-radius: var(--radius-full);
    animation: ring-rotate 20s linear infinite;
}

.hero__image-ring::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    width: 12px;
    height: 12px;
    background: var(--clr-primary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 20px rgba(110, 193, 228, 0.6);
}

.hero__image-ring::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    width: 8px;
    height: 8px;
    background: var(--clr-accent);
    border-radius: var(--radius-full);
    box-shadow: 0 0 15px rgba(97, 206, 112, 0.6);
}

@keyframes ring-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero__image {
    width: 400px;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-full);
    border: 4px solid rgba(110, 193, 228, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 80px rgba(110, 193, 228, 0.1);
    position: relative;
    z-index: 1;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--fs-xs);
    letter-spacing: 2px;
    text-transform: uppercase;
    z-index: 2;
    transition: var(--transition);
}

.hero__scroll:hover {
    color: var(--clr-primary);
}

.hero__scroll-icon {
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ===== SKILLS SECTION ===== */
.skills {
    background: var(--clr-bg-alt);
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.skill-card {
    background: var(--clr-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--clr-border);
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    transform: scaleX(0);
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-card__icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, var(--clr-primary-light), rgba(97, 206, 112, 0.1));
    border-radius: var(--radius-lg);
    font-size: var(--fs-2xl);
    color: var(--clr-primary);
    transition: var(--transition);
}

.skill-card:hover .skill-card__icon {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white);
    transform: scale(1.05);
}

.skill-card__title {
    font-size: var(--fs-xl);
    margin-bottom: var(--space-md);
    color: var(--clr-secondary);
}

.skill-card__description {
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: var(--clr-text);
    margin-bottom: var(--space-lg);
}

.skill-card__tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-xs);
}

.skill-card__tags span {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--clr-primary);
    background: var(--clr-primary-light);
    padding: 4px 14px;
    border-radius: 50px;
}

/* ===== ABOUT SECTION ===== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about__image-wrapper {
    position: relative;
}

.about__image-accent {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--clr-primary);
    border-radius: var(--radius-xl);
    opacity: 0.3;
    z-index: 0;
}

.about__image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.about__stats {
    position: absolute;
    bottom: -30px;
    right: -20px;
    display: flex;
    gap: var(--space-md);
    z-index: 2;
}

.about__stat {
    background: var(--clr-white);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--clr-primary);
}

.about__stat-number {
    display: block;
    font-family: var(--ff-heading);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--clr-deep-blue);
    line-height: 1;
}

.about__stat span:first-child + span {
    font-family: var(--ff-heading);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--clr-deep-blue);
}

.about__stat-label {
    display: block;
    font-size: var(--fs-xs);
    color: var(--clr-text);
    margin-top: 4px;
}

.about__content .section__subtitle {
    text-align: left;
}

.about__content .section__title {
    text-align: left;
}

.about__text {
    font-size: var(--fs-base);
    line-height: 1.8;
    color: var(--clr-text);
    margin-bottom: var(--space-md);
}

.about__info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.about__info-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.about__info-item i {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary-light);
    color: var(--clr-primary);
    border-radius: var(--radius-sm);
    font-size: var(--fs-md);
    flex-shrink: 0;
}

.about__info-item strong {
    display: block;
    font-size: var(--fs-sm);
    color: var(--clr-secondary);
    font-weight: var(--fw-semi);
}

.about__info-item span {
    font-size: var(--fs-xs);
    color: var(--clr-text);
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background: var(--clr-bg-alt);
}

.experience__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.experience__image-wrapper {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

.experience__image {
    width: 100%;
    height: 600px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.experience__timeline {
    position: relative;
}

.experience__timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 15px;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--clr-primary), var(--clr-accent));
    opacity: 0.3;
}

.timeline__item {
    position: relative;
    padding-left: 50px;
    margin-bottom: var(--space-xl);
}

.timeline__item:last-child {
    margin-bottom: 0;
}

.timeline__marker {
    position: absolute;
    left: 0;
    top: 20px;
}

.timeline__dot {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--clr-white);
    border: 3px solid var(--clr-primary);
    position: relative;
    transition: var(--transition);
}

.timeline__dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--clr-primary);
    transition: var(--transition);
}

.timeline__item:hover .timeline__dot {
    border-color: var(--clr-deep-blue);
    box-shadow: 0 0 0 6px rgba(110, 193, 228, 0.2);
}

.timeline__item:hover .timeline__dot::before {
    background: var(--clr-deep-blue);
}

.timeline__content {
    background: var(--clr-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-border);
    overflow: hidden;
    transition: var(--transition);
}

.timeline__content:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(110, 193, 228, 0.3);
}

.timeline__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    transition: var(--transition);
    gap: var(--space-md);
}

.timeline__header:hover {
    background: var(--clr-primary-light);
}

.timeline__title-group {
    flex: 1;
}

.timeline__title {
    font-family: var(--ff-heading);
    font-size: var(--fs-md);
    color: var(--clr-secondary);
    margin-bottom: 2px;
}

.timeline__company {
    font-size: var(--fs-sm);
    color: var(--clr-primary);
    font-weight: var(--fw-medium);
}

.timeline__meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.timeline__date {
    font-size: var(--fs-xs);
    color: var(--clr-text);
    font-weight: var(--fw-medium);
    white-space: nowrap;
}

.timeline__toggle-icon {
    font-size: var(--fs-sm);
    color: var(--clr-text);
    transition: var(--transition);
}

.timeline__header[aria-expanded="true"] .timeline__toggle-icon {
    transform: rotate(180deg);
    color: var(--clr-primary);
}

.timeline__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline__body p {
    padding: 0 var(--space-xl) var(--space-lg);
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: var(--clr-text);
}

.timeline__header[aria-expanded="true"] + .timeline__body {
    max-height: 200px;
}

/* ===== CTA BANNER SECTION ===== */
.cta-banner {
    position: relative;
    background: linear-gradient(135deg, var(--clr-deep-blue) 0%, var(--clr-bg-dark) 100%);
    color: var(--clr-white);
    overflow: hidden;
}

.cta-banner__overlay {
    position: absolute;
    inset: 0;
    background: url('images/cta-bg.jpg') center/cover no-repeat;
    opacity: 0.1;
}

.cta-banner__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-banner__title {
    font-size: var(--fs-3xl);
    color: var(--clr-white);
    margin-bottom: var(--space-lg);
}

.cta-banner__text {
    font-size: var(--fs-md);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    background: var(--clr-bg);
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.portfolio-card {
    background: var(--clr-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--clr-border);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.portfolio-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.portfolio-card__icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary-light);
    border-radius: var(--radius-md);
    font-size: var(--fs-xl);
    color: var(--clr-primary);
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-card__icon {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white);
}

.portfolio-card__badge {
    font-size: var(--fs-xs);
    font-weight: var(--fw-semi);
    color: var(--clr-accent);
    background: rgba(97, 206, 112, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
}

.portfolio-card__title {
    font-size: var(--fs-xl);
    color: var(--clr-secondary);
    margin-bottom: var(--space-xs);
}

.portfolio-card__date {
    font-size: var(--fs-xs);
    color: var(--clr-text);
    font-weight: var(--fw-medium);
    display: block;
    margin-bottom: var(--space-md);
}

.portfolio-card__description {
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: var(--clr-text);
    flex: 1;
}

.portfolio-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semi);
    color: var(--clr-primary);
    margin-top: var(--space-lg);
    transition: var(--transition);
}

.portfolio-card__link i {
    transition: var(--transition);
}

.portfolio-card__link:hover {
    color: var(--clr-deep-blue);
}

.portfolio-card__link:hover i {
    transform: translateX(4px);
}

/* ===== VENTURES SECTION ===== */
.ventures {
    background: var(--clr-bg-alt);
}

.ventures__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.venture-card {
    background: var(--clr-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--clr-border);
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.venture-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--clr-primary);
}

.venture-card__logo-wrapper {
    width: 100%;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
}

.venture-card__logo {
    max-width: 160px;
    max-height: 70px;
    object-fit: contain;
    filter: grayscale(30%);
    transition: var(--transition);
}

.venture-card:hover .venture-card__logo {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.venture-card__logo-placeholder {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--clr-primary-light), rgba(97, 206, 112, 0.1));
    border-radius: var(--radius-lg);
    font-size: var(--fs-2xl);
    color: var(--clr-primary);
    transition: var(--transition);
}

.venture-card:hover .venture-card__logo-placeholder {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white);
    transform: scale(1.05);
}

.venture-card__name {
    font-family: var(--ff-heading);
    font-size: var(--fs-lg);
    color: var(--clr-secondary);
}

.venture-card__role {
    display: block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semi);
    color: var(--clr-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.venture-card__url {
    font-size: var(--fs-xs);
    color: var(--clr-primary);
    font-weight: var(--fw-medium);
}

/* ===== BLOG SECTION ===== */
.blog {
    background: var(--clr-bg);
}

.blog-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    background: var(--clr-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--clr-border);
    transition: var(--transition);
}

.blog-featured:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.blog-featured__image-wrapper {
    position: relative;
    overflow: hidden;
}

.blog-featured__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
    min-height: 400px;
}

.blog-featured:hover .blog-featured__image {
    transform: scale(1.05);
}

.blog-featured__category {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semi);
    color: var(--clr-white);
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    padding: 6px 18px;
    border-radius: 50px;
}

.blog-featured__content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured__title {
    font-size: var(--fs-xl);
    color: var(--clr-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.4;
}

.blog-featured__excerpt {
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: var(--clr-text);
    margin-bottom: var(--space-md);
}

.blog-featured__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.blog-featured__tags span {
    font-size: var(--fs-xs);
    color: var(--clr-primary);
    font-weight: var(--fw-medium);
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-featured__tags span i {
    font-size: 10px;
}

/* ===== CONTACT SECTION ===== */
.contact {
    position: relative;
    background: linear-gradient(135deg, var(--clr-bg-dark) 0%, var(--clr-deep-blue-dark) 100%);
    color: var(--clr-white);
    overflow: hidden;
}

.contact__overlay {
    position: absolute;
    inset: 0;
    background: url('images/about-bg.jpg') center/cover no-repeat;
    opacity: 0.06;
}

.contact__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact__title {
    font-size: var(--fs-3xl);
    color: var(--clr-white);
    margin-bottom: var(--space-md);
}

.contact__text {
    font-size: var(--fs-md);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.contact__social {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.contact__social-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 14px 28px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
}

.contact__social-link:hover {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(110, 193, 228, 0.3);
}

.contact__social-link i {
    font-size: var(--fs-md);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--clr-bg-darker);
    color: rgba(255, 255, 255, 0.6);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo {
    font-family: var(--ff-heading);
    font-size: var(--fs-xl);
    color: var(--clr-white);
    margin-bottom: var(--space-sm);
}

.footer__tagline {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

.footer__heading {
    font-family: var(--ff-heading);
    font-size: var(--fs-base);
    color: var(--clr-white);
    margin-bottom: var(--space-lg);
}

.footer__links li {
    margin-bottom: var(--space-xs);
}

.footer__links a {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--clr-primary);
    padding-left: 6px;
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--fs-sm);
    transition: var(--transition);
}

.footer__social a:hover {
    background: var(--clr-primary);
    border-color: var(--clr-primary);
    color: var(--clr-white);
    transform: translateY(-2px);
}

.footer__bottom {
    text-align: center;
}

.footer__bottom p {
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.4);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-deep-blue));
    color: var(--clr-white);
    border-radius: var(--radius-full);
    font-size: var(--fs-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(110, 193, 228, 0.4);
}

/* ===== SCROLL ANIMATIONS ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate="fade-right"] {
    transform: translateX(-40px);
}

[data-animate="fade-left"] {
    transform: translateX(40px);
}

[data-animate="fade-up"] {
    transform: translateY(40px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0) !important;
}

/* ===== FLOATING PARTICLES ===== */
.particle {
    position: absolute;
    border-radius: var(--radius-full);
    pointer-events: none;
    animation: float-particle linear infinite;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Tablet Large (max: 1024px) */
@media (max-width: 1024px) {
    :root {
        --fs-5xl: 2.75rem;
        --fs-4xl: 2.25rem;
        --fs-3xl: 2rem;
    }

    .hero__container {
        gap: var(--space-xl);
    }

    .hero__image {
        width: 340px;
        height: 340px;
    }

    .hero__image-ring {
        width: 380px;
        height: 380px;
    }

    .skills__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }

    .portfolio__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ventures__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet (max: 768px) */
@media (max-width: 768px) {
    :root {
        --fs-5xl: 2.25rem;
        --fs-4xl: 2rem;
        --fs-3xl: 1.75rem;
        --fs-2xl: 1.5rem;
        --space-4xl: 4rem;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--clr-bg-dark);
        padding: 100px var(--space-xl) var(--space-xl);
        transition: var(--transition-slow);
        box-shadow: -4px 0 30px rgba(0, 0, 0, 0.3);
        z-index: 1000;
        overflow-y: auto;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--space-xs);
    }

    .nav__link {
        font-size: var(--fs-base);
        color: rgba(255, 255, 255, 0.8);
        padding: 12px 20px;
        width: 100%;
        display: block;
        border-radius: var(--radius-sm);
    }

    .nav__link:hover,
    .nav__link.active {
        background: rgba(110, 193, 228, 0.1);
        color: var(--clr-primary);
    }

    .nav__link.active::after {
        display: none;
    }

    .nav__link--cta {
        text-align: center;
        margin-top: var(--space-md);
    }

    .nav__toggle,
    .nav__close {
        display: block;
    }

    .nav__close {
        position: absolute;
        top: 24px;
        right: 24px;
        font-size: var(--fs-xl);
        color: rgba(255, 255, 255, 0.7);
    }

    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: var(--space-xl);
        padding-bottom: var(--space-3xl);
    }

    .hero__content {
        order: 2;
    }

    .hero__image-wrapper {
        order: 1;
    }

    .hero__description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__social {
        justify-content: center;
    }

    .hero__image {
        width: 280px;
        height: 280px;
    }

    .hero__image-ring {
        width: 320px;
        height: 320px;
    }

    .skills__grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }

    .about__stats {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: var(--space-lg);
        justify-content: center;
    }

    .about__content .section__subtitle,
    .about__content .section__title {
        text-align: center;
    }

    .section__divider--left {
        margin: 0 auto var(--space-xl);
    }

    .about__info-grid {
        grid-template-columns: 1fr;
    }

    .about__content {
        text-align: center;
    }

    .about__content .btn {
        display: inline-flex;
    }

    .experience__grid {
        grid-template-columns: 1fr;
    }

    .experience__image-wrapper {
        position: relative;
        top: auto;
    }

    .experience__image {
        height: 350px;
    }

    .portfolio__grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .ventures__grid {
        grid-template-columns: 1fr;
        max-width: 350px;
        margin: 0 auto;
    }

    .blog-featured {
        grid-template-columns: 1fr;
    }

    .blog-featured__image {
        min-height: 250px;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }

    .footer__social {
        justify-content: center;
    }
}

/* Mobile (max: 480px) */
@media (max-width: 480px) {
    :root {
        --fs-5xl: 1.875rem;
        --fs-4xl: 1.625rem;
        --fs-3xl: 1.5rem;
        --fs-2xl: 1.25rem;
        --space-4xl: 3rem;
        --space-3xl: 2.5rem;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .hero__image {
        width: 220px;
        height: 220px;
    }

    .hero__image-ring {
        width: 260px;
        height: 260px;
    }

    .hero__scroll {
        display: none;
    }

    .btn {
        padding: 12px 24px;
        font-size: var(--fs-xs);
    }

    .about__stats {
        flex-direction: column;
        align-items: center;
    }

    .about__stat {
        width: 100%;
        max-width: 200px;
    }

    .ventures__grid {
        max-width: 280px;
    }

    .contact__social {
        flex-direction: column;
        align-items: center;
    }

    .contact__social-link {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .timeline__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    .timeline__meta {
        width: 100%;
        justify-content: space-between;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    .skill-card {
        padding: var(--space-xl);
    }

    .portfolio-card {
        padding: var(--space-xl);
    }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    [data-animate] {
        opacity: 1;
        transform: none;
    }

    .hero__image-ring {
        animation: none;
    }

    .hero__scroll-icon {
        animation: none;
    }
}