/* Cosmic Background */
.cosmic-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
    overflow: hidden;
}

/* Animated stars layers */
.stars,
.stars2,
.stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
}

.stars {
    background-image:
        radial-gradient(2px 2px at 20px 30px, #eee, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 40px 70px, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 50px 50px, #ddd, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 130px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 90px 10px, #fff, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: twinkle 5s ease-in-out infinite;
}

.stars2 {
    background-image:
        radial-gradient(1px 1px at 100px 150px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 200px 200px, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 50px 100px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 250px 250px;
    animation: twinkle 7s ease-in-out infinite reverse;
}

.stars3 {
    background-image:
        radial-gradient(1px 1px at 150px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 80px 120px, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 180px 180px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 300px 300px;
    animation: twinkle 10s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Nebula effect */
.nebula {
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(138, 43, 226, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 30%, rgba(255, 105, 180, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 70%, rgba(196, 113, 237, 0.1) 0%, transparent 50%);
    animation: nebulaFloat 20s ease-in-out infinite;
}

@keyframes nebulaFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.1); }
    66% { transform: translate(-30px, 40px) scale(0.9); }
}

.overlay-cosmic {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

/* Certificate page specific */
.certificate-page .hero {
    min-height: 30vh;
    margin-bottom: 2rem;
}

.certificate-hero .logo {
    font-size: 3.5em;
    background: linear-gradient(135deg, #ffd700, #ff69b4, #8a2be2, #00bfff);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease infinite, glow 2s ease-in-out infinite alternate;
}

/* Responsive logo text */
.logo-mobile {
    display: none;
}

.logo-full {
    display: inline;
}

/* Certificate showcase */
.certificate-showcase {
    padding: 3rem 1rem 5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.certificate-card {
    position: relative;
    max-width: 700px;
    width: 100%;
    background-image: url('images/cert.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    backdrop-filter: blur(20px);
    border-radius: 30px;
    padding: 3rem 2rem;
    border: 3px solid rgba(255, 215, 0, 0.4);
    box-shadow: 0 30px 80px rgba(138, 43, 226, 0.6), 0 0 60px rgba(255, 215, 0, 0.3);
    animation: floatCard 6s ease-in-out infinite;
    overflow: hidden;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(20, 10, 40, 0.45));
    backdrop-filter: blur(0.5px);
    z-index: 0;
    border-radius: 30px;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.certificate-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    animation: rotateGlow 10s linear infinite;
}

@keyframes rotateGlow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.certificate-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.certificate-badge {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s ease-in-out infinite;
}

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

.certificate-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, #ffd700, #ff69b4, #8a2be2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    letter-spacing: 3px;
    animation: shimmerText 3s ease-in-out infinite;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.9)) drop-shadow(0 0 15px rgba(255, 215, 0, 0.6));
}

@keyframes shimmerText {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.certificate-divider {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #ffd700, transparent);
    margin: 1.5rem auto;
    animation: expandContract 2s ease-in-out infinite;
}

@keyframes expandContract {
    0%, 100% { width: 80px; }
    50% { width: 120px; }
}

.certificate-description {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow:
        0 3px 10px rgba(0, 0, 0, 1),
        0 0 25px rgba(138, 43, 226, 0.8),
        0 1px 3px rgba(0, 0, 0, 1);
    font-weight: 600;
}

.certificate-brand {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 900;
    color: #fff;
    text-shadow:
        0 0 40px rgba(196, 113, 237, 1),
        0 5px 15px rgba(0, 0, 0, 1),
        0 2px 5px rgba(0, 0, 0, 1),
        0 0 20px rgba(255, 215, 0, 0.5);
    margin: 1rem 0;
    letter-spacing: 5px;
}

.certificate-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 2rem;
    line-height: 1.6;
    text-shadow:
        0 3px 10px rgba(0, 0, 0, 1),
        0 1px 3px rgba(0, 0, 0, 1);
    font-weight: 600;
}

.certificate-format {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.format-item {
    background: rgba(255, 215, 0, 0.15);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.format-item:hover {
    background: rgba(255, 215, 0, 0.25);
    border-color: rgba(255, 215, 0, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 215, 0, 0.3);
}

/* Buy button */
.buy-button {
    position: relative;
    margin-top: 2.5rem;
    padding: 1.2rem 3rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #ffd700, #ff69b4, #8a2be2);
    background-size: 200% 200%;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(255, 105, 180, 0.5);
    transition: all 0.3s ease;
    animation: buttonPulse 2s ease-in-out infinite;
}

@keyframes buttonPulse {
    0%, 100% {
        box-shadow: 0 15px 40px rgba(255, 105, 180, 0.5);
    }
    50% {
        box-shadow: 0 20px 60px rgba(255, 105, 180, 0.8), 0 0 40px rgba(255, 215, 0, 0.6);
    }
}

.buy-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 25px 70px rgba(255, 105, 180, 0.9), 0 0 50px rgba(255, 215, 0, 0.8);
}

.buy-button:active {
    transform: translateY(-2px) scale(1.02);
}

.button-text {
    position: relative;
    z-index: 2;
}

.button-shine {
    position: absolute;
    top: -50%;
    left: -100%;
    width: 30%;
    height: 200%;
    background: rgba(255, 255, 255, 0.4);
    transform: rotate(25deg);
    animation: buttonShine 3s linear infinite;
}

@keyframes buttonShine {
    0% { left: -100%; }
    100% { left: 200%; }
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.modal-content {
    background: linear-gradient(135deg, rgba(20, 20, 50, 0.95), rgba(40, 20, 60, 0.95));
    backdrop-filter: blur(20px);
    padding: 3rem 2.5rem;
    border-radius: 25px;
    border: 2px solid rgba(196, 113, 237, 0.4);
    box-shadow: 0 30px 80px rgba(138, 43, 226, 0.6);
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2.5rem;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-modal:hover {
    color: #ff69b4;
    transform: rotate(90deg);
}

.modal-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 2rem;
    text-align: center;
    text-shadow: 0 0 20px rgba(196, 113, 237, 0.6);
}

/* Form styles */
.certificate-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

.form-group input {
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: rgba(196, 113, 237, 0.6);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 20px rgba(196, 113, 237, 0.4);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.submit-button {
    margin-top: 1rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #8a2be2, #ff69b4);
    border: none;
    border-radius: 50px;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(138, 43, 226, 0.4);
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(138, 43, 226, 0.6);
}

/* Success modal */
.success-content {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #fff;
    animation: successPop 0.5s ease;
}

@keyframes successPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.success-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 1rem;
}

.success-message {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.close-success-btn {
    padding: 0.8rem 2.5rem;
    background: linear-gradient(135deg, #8a2be2, #ff69b4);
    border: none;
    border-radius: 50px;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-success-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(138, 43, 226, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .certificate-card {
        padding: 2rem 1.5rem;
    }

    .certificate-title {
        font-size: 2rem;
    }

    .certificate-brand {
        font-size: 2.2rem;
    }

    .certificate-badge {
        font-size: 3rem;
    }

    .format-item {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }

    .buy-button {
        font-size: 1.1rem;
        padding: 1rem 2.5rem;
    }
}

@media (max-width: 480px) {
    /* Switch to mobile logo text */
    .logo-full {
        display: none;
    }

    .logo-mobile {
        display: inline;
    }

    .certificate-hero .logo {
        font-size: 3em;
    }

    .certificate-title {
        font-size: 1.6rem;
        letter-spacing: 2px;
    }

    .certificate-brand {
        font-size: 1.8rem;
        letter-spacing: 3px;
    }

    .certificate-subtitle {
        font-size: 1rem;
    }

    .format-item {
        font-size: 0.85rem;
    }

    .modal-content {
        padding: 2rem 1.5rem;
    }

    .modal-title {
        font-size: 1.6rem;
    }

    .certificate-card {
        padding: 2.5rem 1.5rem;
    }
}