/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: #0b1220;
    color: #e6ecff;
    transition: 0.3s;
}

/* ===== LIGHT MODE ===== */
body.light {
    background: #f5f9ff;
    color: #0a1a44;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-transform: uppercase;
    color: #64b5ff;
}

body.light h2 {
    color: #001a4d;
}

/* ===== IMAGE ROTATION ===== */
#hero-img {
    transition: none;
    opacity: 1;
}

.hero.fade-bg {
    animation: fadeBackgroundInOut 1.2s ease-in-out;
}

@keyframes fadeBackgroundInOut {
    0% { opacity: 1; }
    50% { opacity: 0.3; }
    100% { opacity: 1; }
}

/* ===== NAVBAR ===== */
nav {
    position: fixed;
    width: 100%;
    background: #001a4d;
    color: white;
    padding: 15px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 26, 77, 0.3);
}

body.light nav {
    background: #f5f9ff;
    color: #001a4d;
    box-shadow: 0 4px 15px rgba(0, 26, 77, 0.15);
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.5px;
}

body.light .logo-name {
    color: #001a4d;
}

.logo-subtitle {
    font-size: 0.7rem;
    font-weight: 600;
    color: #ccc;
    letter-spacing: 1px;
}

body.light .logo-subtitle {
    color: #0a1a44;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav a {
    color: white;
    text-decoration: none;
}

body.light nav a {
    color: #001a4d;
}

.menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

body.light .menu-btn {
    color: #001a4d;
}

.dark-toggle {
    margin-left: 15px;
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
}

body.light .dark-toggle {
    color: #001a4d;
}
/* ===== HERO ===== */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(0,26,77,0.8), rgba(0,51,170,0.8)), url('afif ytp pic.jpg') center/cover;
    background-attachment: fixed;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: left;
    gap: 60px;
    padding: 0 60px;
    position: relative;
}

.hero::before {
    content: '✓ afif ytp pic.jpg loaded';
    position: absolute;
    bottom: 30px;
    right: 60px;
    font-size: 0.9rem;
    color: rgba(100, 255, 100, 0.8);
    background: rgba(0, 26, 77, 0.8);
    padding: 12px 20px;
    border-radius: 20px;
    font-weight: 600;
    text-align: center;
    z-index: 5;
    pointer-events: none;
    backdrop-filter: blur(5px);
}

.hero-content {
    flex: 1;
    z-index: 10;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    font-weight: 300;
    letter-spacing: 2px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.3);
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.btn-primary {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    color: #001a4d;
    border: none;
    padding: 16px 45px;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.4);
    background: linear-gradient(135deg, #ffffff, #ffffff);
}

.btn-primary:active {
    transform: translateY(-1px);
}

/* ===== SECTIONS ===== */
.section {
    padding: 150px 60px;
    position: relative;
    min-height: 60vh;
}

/* ===== LARGE SECTIONS ===== */
#achievements, #activities, #dream {
    padding: 100px 60px;
    min-height: auto;
}

/* ===== SUBSECTIONS ===== */
.subsection {
    display: flex;
    align-items: center;
    gap: 50px;
    margin: 80px 0;
    padding: 40px;
    background: rgba(100, 181, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.subsection:hover {
    background: rgba(100, 181, 255, 0.15);
    transform: translateY(-5px);
}

body.light .subsection {
    background: rgba(255, 255, 255, 0.1);
}

body.light .subsection:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* ===== VERTICAL SUBSECTIONS (Achievements & Dream) ===== */
.subsection.vertical {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
}

.subsection.vertical:hover {
    transform: translateY(-3px);
}

.subsection-content {
    flex: 1;
}

.subsection-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: #64b5ff;
}

.subsection-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: #ccc;
}

body.light .subsection-content h3 {
    color: #001a4d;
}

body.light .subsection-content p {
    color: #333;
}

/* ===== SUB-SUBSECTIONS ===== */
.sub-subsection {
    margin-top: 25px;
    padding: 20px 25px;
    background: rgba(100, 181, 255, 0.1);
    border-left: 4px solid #64b5ff;
    border-radius: 5px;
    transition: all 0.3s ease;
}

body.light .sub-subsection {
    background: rgba(0, 26, 77, 0.08);
    border-left-color: #001a4d;
}

.sub-subsection:hover {
    background: rgba(100, 181, 255, 0.15);
    transform: translateX(5px);
}

body.light .sub-subsection:hover {
    background: rgba(0, 26, 77, 0.12);
}

.sub-subsection h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: #64b5ff;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

body.light .sub-subsection h4 {
    color: #001a4d;
}

.sub-subsection p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #bbb;
    margin: 0;
}

body.light .sub-subsection p {
    color: #555;
}

.subsection-image {
    flex: 0 0 320px;
}

.subsection-image img {
    width: 100%;
    height: 280px;
    border-radius: 10px;
    object-fit: cover;
    opacity: 0.85;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ===== IMAGE PLACEHOLDER ===== */
.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 26, 77, 0.3);
    border-radius: 10px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.subsection-image {
    position: relative;
}

.subsection-image:hover .image-placeholder {
    opacity: 1;
}

.placeholder-arrow {
    font-size: 3rem;
    margin-bottom: 10px;
}

.image-placeholder p {
    color: white;
    font-weight: 600;
    background: rgba(0, 26, 77, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image .image-placeholder {
    position: relative;
    opacity: 0;
    background: transparent;
    pointer-events: none;
}

.subsection.light {
    background: rgba(255, 255, 255, 0.15);
}

.subsection.light h3,
.subsection.light p {
    color: white;
}

.section.blue {
    background: #0f1a35;
}

body.light .section.blue {
    background: #d4e4ff;
}

/* ===== ACHIEVEMENTS BACKGROUND ===== */
#achievements {
    background: linear-gradient(135deg, rgba(15,26,53,0.95), rgba(20,35,70,0.95)), url('achievements-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

body.light #achievements {
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(230,240,255,0.95)), url('achievements-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

#achievements .subsection-content h3 {
    color: #64b5ff;
}

#achievements .subsection-content p {
    color: #d0d0d0;
}

#achievements .sub-subsection {
    background: rgba(100, 181, 255, 0.1);
    border-left-color: #64b5ff;
}

#achievements .sub-subsection h4 {
    color: #64b5ff;
}

#achievements .sub-subsection p {
    color: #b0b0b0;
}

body.light #achievements .subsection-content h3 {
    color: #001a4d;
}

body.light #achievements .subsection-content p {
    color: #333;
}

body.light #achievements .sub-subsection {
    background: rgba(0, 26, 77, 0.08);
    border-left-color: #001a4d;
}

body.light #achievements .sub-subsection h4 {
    color: #001a4d;
}

body.light #achievements .sub-subsection p {
    color: #555;
}

/* ===== EDUCATION BACKGROUND ===== */
#education {
    background: linear-gradient(135deg, rgba(18,28,53,0.95), rgba(20,35,70,0.95)), url('education-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

body.light #education {
    background: linear-gradient(135deg, rgba(230,239,255,0.95), rgba(200,220,255,0.95)), url('education-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

/* ===== ACTIVITIES BACKGROUND ===== */
#activities {
    background: linear-gradient(135deg, rgba(18,28,53,0.95), rgba(20,35,70,0.95)), url('activities-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

body.light #activities {
    background: linear-gradient(135deg, rgba(230,239,255,0.95), rgba(200,220,255,0.95)), url('activities-bg.jpg') center/cover !important;
    background-attachment: fixed;
}

/* ===== GLASS CARDS ===== */
.card.glass {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 15px;
    margin: 15px 0;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

/* ===== DREAM ===== */
.dream {
    background: linear-gradient(135deg, rgba(0,26,77,0.9), rgba(0,51,170,0.9)), url('dream-bg.jpg') center/cover;
    background-attachment: fixed;
    color: white;
    text-align: left;
}

.dream h2 {
    color: white;
}

.dream .subsection-content p {
    color: #e0e0e0;
}

/* ===== DREAM LOGOS ===== */
.dream-logos {
    display: flex;
    gap: 60px;
    margin-top: 30px;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
}

.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.logo-item img {
    height: 70px;
    width: auto;
    object-fit: contain;
    opacity: 0.9;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 8px;
}

.logo-item img:hover {
    opacity: 1;
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.2);
}

.logo-badge {
    height: 70px;
    width: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a3d7d, #0052a3);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-weight: 800;
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    text-align: center;
    padding: 10px;
}

.logo-item:hover .logo-badge {
    background: linear-gradient(135deg, #0052a3, #0066cc);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(0, 82, 163, 0.4);
}

.logo-svg {
    width: 140px;
    height: 70px;
    transition: all 0.3s ease;
}

.logo-item:hover .logo-svg {
    transform: scale(1.1);
    filter: drop-shadow(0 10px 30px rgba(0, 82, 163, 0.4));
}

/* ===== LOGO CONTAINER FOR CUSTOM IMAGES ===== */
.logo-container {
    width: 140px;
    height: 70px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.logo-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 26, 77, 0.4);
    z-index: 1;
    transition: all 0.3s ease;
}

.logo-container span {
    position: relative;
    z-index: 2;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.7rem;
    font-weight: 600;
    text-align: center;
    padding: 5px;
    display: block;
}

.logo-container .placeholder-arrow {
    position: absolute;
    top: 5px;
    font-size: 1.5rem;
    z-index: 3;
}

.logo-container:hover::before {
    background: rgba(0, 26, 77, 0.2);
}

.logo-item:hover .logo-container {
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 82, 163, 0.4);
}

.logo-item p {
    color: #e0e0e0;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

/* ===== SCROLL ANIMATION ===== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 30px 60px;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 0.9rem;
    }

    .hero-image img {
        width: 200px;
        height: 200px;
    }

    .subsection {
        flex-direction: column;
        gap: 30px;
        padding: 20px;
        margin: 40px 0;
    }

    .subsection-image {
        flex: 0 0 100%;
    }

    .subsection-content h3 {
        font-size: 1.3rem;
    }

    h2 {
        font-size: 1.8rem;
        margin-bottom: 20px;
    }

    .section {
        padding: 80px 20px;
    }

    #achievements, #activities, #dream {
        padding: 80px 20px;
    }

    nav ul {
        display: none;
        flex-direction: column;
        background: #001a4d;
        position: absolute;
        top: 60px;
        right: 0;
        width: 100%;
    }

    nav ul.show {
        display: flex;
    }

    .menu-btn {
        display: block;
    }
}