/* ===== CSS VARIABLES ===== */
:root {
    /* Color Palette */
    --color-primary-dark: #1a5f7a;    /* Darkest blue */
    --color-primary-med: #2a9d8f;     /* Medium teal */
    --color-primary-light: #52b6cc;   /* Light blue */
    --color-accent: #f4a261;          /* Orange highlight */
    
    /* Additional Colors */
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-gray-light: #e9ecef;
    --color-gray: #6c757d;
    --color-dark: #2c3e50;
    --color-success: #27ae60;
    
    /* Fonts */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'M PLUS Rounded 1c', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(26, 95, 122, 0.1);
    --shadow-md: 0 4px 12px rgba(26, 95, 122, 0.15);
    --shadow-lg: 0 8px 30px rgba(26, 95, 122, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-dark);
    background: 
        radial-gradient(circle at 20% 50%, rgba(42, 157, 143, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(82, 182, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(244, 162, 97, 0.02) 0%, transparent 50%),
        linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 50%, #f0f8ff 100%);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(42, 157, 143, 0.03) 1px, transparent 0);
    background-size: 20px 20px;
    z-index: -1;
    opacity: 0.5;
}

/* ===== BACKGROUND ELEMENTS ===== */
.ocean-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100px;
    background: linear-gradient(90deg, transparent, var(--color-primary-light), transparent);
    border-radius: 50%;
    opacity: 0.1;
    animation: wave-motion 15s ease-in-out infinite;
}

.wave1 {
    animation-delay: 0s;
    animation-duration: 20s;
}

.wave2 {
    animation-delay: -5s;
    animation-duration: 18s;
    height: 80px;
    opacity: 0.08;
}

.wave3 {
    animation-delay: -10s;
    animation-duration: 22s;
    height: 120px;
    opacity: 0.06;
}

@keyframes wave-motion {
    0%, 100% { transform: translateX(-50%) translateY(0px) rotate(0deg); }
    50% { transform: translateX(-50%) translateY(-20px) rotate(180deg); }
}

/* ===== FLOATING ELEMENTS ===== */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.float-element {
    position: absolute;
    font-size: 1.5rem;
    color: var(--color-primary-light);
    opacity: 0.15;
    animation: float 6s ease-in-out infinite;
}

.float-element:nth-child(1) { animation-delay: 0s; }
.float-element:nth-child(2) { animation-delay: -2s; }
.float-element:nth-child(3) { animation-delay: -4s; }
.float-element:nth-child(4) { animation-delay: -1s; }

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* ===== MAIN CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER ===== */
.header {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.logo-container {
    display: inline-block;
    padding: var(--spacing-lg);
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border-radius: var(--radius-xl);
    box-shadow: 
        var(--shadow-lg),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(42, 157, 143, 0.1);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.logo-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.logo-container:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(26, 95, 122, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.logo-container:hover::before {
    left: 100%;
}

.logo {
    max-height: 80px;
    width: auto;
    display: block;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-xxl) 0;
}

/* ===== HERO SECTION ===== */
.hero {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(42, 157, 143, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-title {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-med), var(--color-primary-light));
    border-radius: 2px;
}

.title-main {
    display: block;
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    font-weight: 700;
    background: linear-gradient(135deg, #0f4c75, #1a5f7a, #2a7f9a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-primary);
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

.title-sub {
    display: block;
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 400;
    color: var(--color-accent);
    font-family: var(--font-secondary);
    letter-spacing: 2px;
}

.hero-description {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
    line-height: 1.8;
}

.combined-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent), #e76f51);
    padding: 4px;
    border-radius: 20px;
    box-shadow: 
        0 15px 40px rgba(244, 162, 97, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    animation: pulse-glow 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
}

.combined-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 4s ease-in-out infinite;
    z-index: 1;
}

.badge-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--color-white);
    margin: 0 0 4px 0;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 16px;
    font-weight: 600;
    color: var(--color-primary-dark);
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

.coming-soon-text {
    margin: 0;
}

.badge-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
    z-index: 2;
    text-align: center;
    line-height: 1.4;
}

.badge-icon {
    font-size: 1.1rem;
    opacity: 0.9;
}

.badge-message {
    margin: 0;
}

@keyframes shimmer {
    0%, 100% { left: -100%; }
    50% { left: 100%; }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 8px 30px rgba(244, 162, 97, 0.4); }
}

/* ===== COMING SOON SECTION ===== */
.coming-soon {
    margin-bottom: var(--spacing-xl);
}

/* Status indicator styles are now part of .combined-badge */

.pulse-dot {
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

.section-title {
    font-size: clamp(1.5rem, 3.2vw, 2rem);
    font-weight: 600;
    background: linear-gradient(135deg, #1a5f7a, #2a7f9a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #2a7f9a, #52b6cc);
    border-radius: 1px;
}

.section-description {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    color: var(--color-gray);
    max-width: 450px;
    margin: 0 auto var(--spacing-lg) auto;
    line-height: 1.6;
}

/* ===== SIGNUP SECTION ===== */
.signup-section {
    width: 100%;
    max-width: 620px;
    margin: var(--spacing-xl) auto var(--spacing-xl) auto;
}

.form-container {
    background: rgba(255, 255, 255, 0.12);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 
        0 8px 25px rgba(26, 95, 122, 0.08),
        0 2px 8px rgba(42, 157, 143, 0.05);
    border: 1px solid rgba(42, 157, 143, 0.12);
    position: relative;
    backdrop-filter: blur(12px);
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary-med), transparent);
    opacity: 0.6;
}

.email-form {
    width: 100%;
}

.input-group {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.input-container {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.input-icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray);
    font-size: 1rem;
    z-index: 2;
}

.email-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 3rem;
    border: 1px solid rgba(0, 0, 0, 0.15) !important;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-primary);
    background: rgba(255, 255, 255, 0.9);
    transition: all var(--transition-smooth);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
}

/* Override browser default validation styles */
.email-input:invalid {
    border: 1px solid #000000 !important;
    box-shadow: none !important;
}

.email-input:valid {
    border: 1px solid rgba(0, 0, 0, 0.15) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03) !important;
}

.email-input:focus {
    outline: none !important;
    border-color: var(--color-primary-med) !important;
    background: var(--color-white);
    box-shadow: 
        0 0 0 4px rgba(42, 157, 143, 0.1),
        0 4px 12px rgba(42, 157, 143, 0.15),
        inset 0 1px 2px rgba(0, 0, 0, 0.05) !important;
    transform: translateY(-1px);
}

.email-input::placeholder {
    color: #a0a8b0;
    font-weight: 400;
}

.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, #2a7f9a, #1a5f7a);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-secondary);
    cursor: pointer;
    transition: all var(--transition-smooth);
    min-width: 120px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(42, 127, 154, 0.12);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.submit-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 15px 35px rgba(42, 127, 154, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    background: linear-gradient(135deg, #1a5f7a, #2a7f9a);
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-icon {
    transition: transform var(--transition-smooth);
}

.submit-btn:hover .btn-icon {
    transform: translateX(3px);
}

.captcha-container {
    margin-bottom: var(--spacing-lg);
}

.math-captcha {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(42, 157, 143, 0.15);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-fast);
}

.math-captcha:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(42, 157, 143, 0.15);
}

.captcha-label {
    display: block;
    color: var(--color-gray);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-secondary);
}

.captcha-label i {
    margin-right: var(--spacing-sm);
    color: var(--color-primary-med);
}

#captcha-question {
    color: var(--color-accent);
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-accent), #e76f51);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 0.9rem;
}

.captcha-input {
    width: 120px;
    padding: var(--spacing-sm) var(--spacing-sm);
    border: 1px solid rgba(42, 157, 143, 0.3) !important;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-dark);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
    margin-top: var(--spacing-sm);
    line-height: 1.4;
    min-height: 40px;
    box-sizing: border-box;
}

.captcha-input:focus {
    outline: none !important;
    border-color: var(--color-primary-med) !important;
    box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.1) !important;
    background: var(--color-white);
}

.captcha-input:invalid {
    border-color: #000000 !important;
    box-shadow: none !important;
}

.captcha-input:valid {
    border-color: var(--color-success) !important;
    box-shadow: none !important;
}

.privacy-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--color-gray);
    font-size: 0.85rem;
    text-align: center;
    margin-top: var(--spacing-md);
}

/* ===== FOOTER ===== */
.footer {
    margin-top: auto;
    padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
    background: transparent;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.95rem;
    color: #5a6c7d;
    flex-wrap: wrap;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    font-weight: 400;
    letter-spacing: 0.3px;
    opacity: 0.8;
}

/* Footer links removed */

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    text-align: center;
    transform: scale(0.9);
    transition: transform var(--transition-smooth);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
}

.success-icon {
    font-size: 3rem;
    color: var(--color-success);
    margin-bottom: var(--spacing-md);
}

.modal-header h3 {
    font-size: 1.8rem;
    color: var(--color-primary-dark);
    font-family: var(--font-secondary);
}

.modal-body p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
    line-height: 1.6;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-gray-light);
    color: var(--color-dark);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header {
        padding: var(--spacing-md) 0;
    }
    
    .logo {
        max-height: 60px;
    }
    
    .hero-content {
        padding: 0 var(--spacing-sm);
    }
    
    .title-sub {
        font-size: 1rem;
        letter-spacing: 1px;
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-container {
        min-width: 100%;
    }
    
    .submit-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-content {
        padding: 0 var(--spacing-md);
        font-size: 0.9rem;
    }
    
    .float-element {
        font-size: 1.2rem;
    }
    
    .combined-badge {
        max-width: 95%;
    }
    
    .badge-content {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }
    
    .badge-header {
        font-size: 0.85rem;
        padding: 6px var(--spacing-sm);
    }
    
    .math-captcha {
        padding: var(--spacing-md);
    }
    
    .captcha-input {
        width: 110px;
        font-size: 0.9rem;
        padding: var(--spacing-sm) var(--spacing-sm);
        min-height: 42px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    .hero {
        margin-bottom: var(--spacing-lg);
    }
    
    .coming-soon {
        margin-bottom: var(--spacing-lg);
    }
    
    .signup-section {
        margin-bottom: var(--spacing-lg);
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
        margin: var(--spacing-md);
    }
    
    .title-main {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        white-space: normal;
        line-height: 1.2;
    }
    
    .logo-container {
        padding: var(--spacing-md);
    }
}

/* Additional mobile optimization for very small screens */
@media (max-width: 320px) {
    .title-main {
        font-size: 1.6rem;
        word-break: break-word;
        hyphens: auto;
    }
    
    .combined-badge {
        max-width: 100%;
        padding: 3px;
    }
    
    .badge-content {
        font-size: 0.85rem;
        padding: var(--spacing-sm) var(--spacing-md);
        line-height: 1.3;
    }
    
    .badge-header {
        font-size: 0.8rem;
        padding: 6px var(--spacing-sm);
    }
    
    .math-captcha {
        padding: var(--spacing-sm);
    }
    
    .captcha-label {
        font-size: 0.9rem;
    }
    
    .captcha-input {
        width: 100px;
        font-size: 0.85rem;
        padding: var(--spacing-sm) var(--spacing-sm);
        min-height: 40px;
        line-height: 1.3;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.coming-soon {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.signup-section {
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.email-input:focus,
.submit-btn:focus,
.modal-close:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== LOADING STATES ===== */
.submit-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.submit-btn.loading .btn-text {
    opacity: 0;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid var(--color-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}