/* main.css - Component Styles & Visual Design */

/* ===========================
   PRELOADER
   =========================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--carbon-black) 0%, var(--charcoal-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.skeleton-container {
    width: 90%;
    max-width: 600px;
}

.skeleton-header,
.skeleton-line,
.skeleton-card {
    background: linear-gradient(90deg, rgba(169, 188, 208, 0.1) 25%, rgba(88, 164, 176, 0.2) 50%, rgba(169, 188, 208, 0.1) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.skeleton-header {
    height: 60px;
    width: 70%;
    margin-bottom: var(--spacing-lg);
}

.skeleton-line {
    height: 20px;
    width: 100%;
}

.skeleton-line.short {
    width: 60%;
}

.skeleton-card {
    height: 120px;
    width: 100%;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ===========================
   HERO SECTION
   =========================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--carbon-black);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.animated-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--carbon-black) 0%, var(--charcoal-blue) 50%, var(--pacific-blue) 100%);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(88, 164, 176, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88, 164, 176, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
}

.hero-image-container {
    margin-bottom: var(--spacing-xl);
}

.profile-frame {
    width: 220px;
    height: 220px;
    margin: 0 auto;
    position: relative;
    border-radius: 50%;
    padding: 6px;
    background: linear-gradient(135deg, var(--pacific-blue), var(--powder-blue));
    box-shadow: 0 10px 40px rgba(88, 164, 176, 0.3);
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: var(--alabaster-grey);
    border: 4px solid var(--carbon-black);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--alabaster-grey), var(--powder-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: var(--font-size-xl);
    color: var(--powder-blue);
    margin-bottom: var(--spacing-xl);
    font-weight: var(--font-light);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-tagline {
        font-size: var(--font-size-lg);
    }
    
    .profile-frame {
        width: 180px;
        height: 180px;
    }
}

/* ===========================
   ABOUT SECTION
   =========================== */
.about-section {
    background: linear-gradient(180deg, #ffffff 0%, var(--alabaster-grey) 100%);
}

.about-card {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-top: 4px solid var(--pacific-blue);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    color: var(--pacific-blue);
}

.about-card h3 {
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-md);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-card p strong {
    color: var(--charcoal-blue);
    font-weight: var(--font-semibold);
}

/* ===========================
   EDUCATION TIMELINE
   =========================== */
.education-section {
    background: #ffffff;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--pacific-blue), var(--powder-blue));
}

@media (max-width: 768px) {
    .timeline::before {
        left: 32px;
    }
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

@media (max-width: 768px) {
    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: row;
    }
}

.timeline-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: linear-gradient(135deg, var(--pacific-blue), var(--powder-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    box-shadow: 0 0 0 8px #ffffff, var(--shadow-lg);
    position: relative;
    z-index: 2;
}

.timeline-icon svg {
    width: 32px;
    height: 32px;
}

.timeline-content {
    flex: 1;
    background: #ffffff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--pacific-blue);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-xl);
    transform: translateX(-4px);
}

.timeline-item:nth-child(even) .timeline-content:hover {
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .timeline-content:hover,
    .timeline-item:nth-child(even) .timeline-content:hover {
        transform: translateY(-4px);
    }
}

.timeline-content h3 {
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-xs);
}

.timeline-status {
    color: var(--pacific-blue);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-xs);
}

.timeline-org {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.timeline-desc {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===========================
   EXPERIENCE SECTION
   =========================== */
.experience-section {
    background: linear-gradient(180deg, var(--alabaster-grey) 0%, #ffffff 100%);
}

.experience-card {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--pacific-blue);
    max-width: 1000px;
    margin: 0 auto;
    transition: all var(--transition-base);
}

.experience-card:hover {
    box-shadow: var(--shadow-xl);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.experience-header h3 {
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-xs);
}

.company-name {
    color: var(--pacific-blue);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-lg);
}

.duration {
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--alabaster-grey);
    border-radius: var(--radius-md);
}

.experience-duties ul {
    list-style: none;
    padding: 0;
}

.experience-duties li {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.8;
}

.experience-duties li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--pacific-blue);
    border-radius: 50%;
}

/* ===========================
   SKILLS SECTION
   =========================== */
.skills-section {
    background: #ffffff;
}

.skill-category {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-top: 4px solid var(--pacific-blue);
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.category-icon {
    width: 48px;
    height: 48px;
    color: var(--pacific-blue);
    margin-bottom: var(--spacing-md);
}

.skill-category h3 {
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-lg);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item span {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

.skill-bar {
    height: 8px;
    background: var(--alabaster-grey);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--pacific-blue), var(--powder-blue));
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease-out;
}

.skill-progress.animated {
    width: var(--progress-width);
}

/* ===========================
   CONTACT SECTION
   =========================== */
.contact-section {
    background: linear-gradient(180deg, var(--alabaster-grey) 0%, #ffffff 100%);
}

.contact-info {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    height: fit-content;
}

.contact-info h3 {
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.contact-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: linear-gradient(135deg, var(--pacific-blue), var(--powder-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-label {
    font-weight: var(--font-semibold);
    color: var(--charcoal-blue);
    margin-bottom: var(--spacing-xs);
}

.contact-item a {
    color: var(--pacific-blue);
    word-break: break-word;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form-container {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-feedback {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: none;
}

.form-feedback.success {
    display: block;
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.form-feedback.error {
    display: block;
    background: rgba(220, 53, 69, 0.1);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--carbon-black);
    color: var(--powder-blue);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    margin: 0;
}

/* ===========================
   SCROLL REVEAL ANIMATIONS
   =========================== */
.reveal-fade.visible {
    animation: fadeIn var(--transition-slow) forwards;
}

.reveal-slide-up.visible {
    animation: slideUp var(--transition-slow) forwards;
}

.reveal-slide-left.visible {
    animation: slideLeft var(--transition-slow) forwards;
}

.reveal-slide-right.visible {
    animation: slideRight var(--transition-slow) forwards;
}

.reveal-scale.visible {
    animation: scaleUp var(--transition-slow) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}